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What to do with lasers?

Spikes

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Joined
Mar 19, 2021
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161
Location
Arkansas
I hope this fits into the general tools catagory, even though they are slightly unusual tools...

Several people who know me watch for broken electronic stuff, as I like to fix things in my spare time. I was given a very large amount of older medical equipment for helping a widow empty out her late husband's storage building, separating the stuff she wanted and helping her move it to her house. I also regularly repair several things for her, which feels good.

In this lot of items were 3 broken lasers. One is for liposuction and the other two are for removing moles, tattoos, etc. It was great fun working on them and getting them going again. Two of them had liquid cooling and had been allowed to freeze with water in them, one also had electrical issues and one needed new hoses and some components.

Since I'm not a certified laser repair tech, these are now relegated to a life of non-medical use. I also can't sell them (legally) without a medical license, but that's not really an issue since they are now non-medical lasers anyway.
The issue is what to do with them. They are great for setting things on fire, etching things, removing ink from paper and rust or paint from tools, but that's about it. If I had a tattoo I wanted gone, I'm golden, but I like mine where they are.

I'm looking for ideas. Things to try. Potential uses. They are powerful, but only deliver light in pulses one dot at a time, so not great for anything big.

Lasers.JPG
Laser.JPG
 
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RTM

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May 13, 2019
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Location
SF Bay Area
I'm looking for ideas. Things to try. Potential uses. They are powerful, but only deliver light in pulses one dot at a time, so not great for anything big.
Well, if rust removal was tedious, I’m out. The laser etching info on tools was bettered controlled than yours. Could you focus the beam into a line, and use it to darken up / fill in the crappy stamped sizes on sockets?

Is it possible to remove mole like blobs of rust off an otherwise decent tool?
 

kbuhagiar

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Joined
Dec 27, 2005
Messages
1,740
Location
Escondido, CA
I hope this fits into the general tools catagory, even though they are slightly unusual tools...

Several people who know me watch for broken electronic stuff, as I like to fix things in my spare time. I was given a very large amount of older medical equipment for helping a widow empty out her late husband's storage building, separating the stuff she wanted and helping her move it to her house. I also regularly repair several things for her, which feels good.

In this lot of items were 3 broken lasers. One is for liposuction and the other two are for removing moles, tattoos, etc. It was great fun working on them and getting them going again. Two of them had liquid cooling and had been allowed to freeze with water in them, one also had electrical issues and one needed new hoses and some components.

Since I'm not a certified laser repair tech, these are now relegated to a life of non-medical use. I also can't sell them (legally) without a medical license, but that's not really an issue since they are now non-medical lasers anyway.
The issue is what to do with them. They are great for setting things on fire, etching things, removing ink from paper and rust or paint from tools, but that's about it. If I had a tattoo I wanted gone, I'm golden, but I like mine where they are.

I'm looking for ideas. Things to try. Potential uses. They are powerful, but only deliver light in pulses one dot at a time, so not great for anything big.
Can you modify them to emit a steady stream of laser light, as opposed to pulses?
 
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S

Spikes

Well-known member
Joined
Mar 19, 2021
Messages
161
Location
Arkansas
Well, if rust removal was tedious, I’m out. The laser etching info on tools was bettered controlled than yours. Could you focus the beam into a line, and use it to darken up / fill in the crappy stamped sizes on sockets?

Is it possible to remove mole like blobs of rust off an otherwise decent tool?

It would be ok for etching or removing small amounts of rust.
 

Wubicon

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Joined
Jan 10, 2025
Messages
368
This is has some mythbusters flavor to it... What do they do to other materials like wood or ceramic? Maybe it'll take paint of wood?
 

MacMcMacmac

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Oct 21, 2014
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Location
canada
Probably best sold for parts. Nd:YAG wavelengths are murder on your eyes so be extremely careful. You really should have eye protection for the proper wavelength or not be fooling around with this. You can generate extremely intense 514nm green light with the proper frequency doubling crystals, but again, what use would it be?
 
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Spikes

Well-known member
Joined
Mar 19, 2021
Messages
161
Location
Arkansas
Probably best sold for parts. Nd:YAG wavelengths are murder on your eyes so be extremely careful. You really should have eye protection for the proper wavelength or not be fooling around with this. You can generate extremely intense 514nm green light with the proper frequency doubling crystals, but again, what use would it be?
Thanks for the solid advice. The lasers came with several higher quality pairs of glasses, so I don't have to do the safety squint.
They also came with multiple lenses to change the light frequencies but I haven't played around with them. It's interesting how the wavelength thing works to us uninitiated.
 

no704

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Joined
Apr 27, 2016
Messages
5,211
Second the have proper eye protection! This is not to be taken lightly!
 
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